Finishing welt



July 2, 1929. I R. c. SCHEMMEL 1, 19.

FINISHING WELT Filed May 1929 Patented July 2, 1929.

UNITED STATES 1,719,729 PATENT OFFICE.

ROBERT C. SCHEMMEL, 0F UNION CITY, INDIANA.

FINISHING WELT.

Application filed May 8, 1929. serial li'o. 861,421.

My present invention relates to improvements in welts, gimps and bindings made of leather, leather substitutes and woven fabrics for use in trimming automobile bodies and tops, other vehicles, furniture, etc.

The invention comprises a finishing welt of the blind-nail type, and is in the nature of an improvement upon United States Letters Patent No. 1,528,699, issued to me under date of March 3, 1925. It has for an object the production of welts having a withincontainedfiller strip extendin' across the base of the welt and itsfoldable ody or tackconcea-led member, and provided with transversely arranged metallic strands woven into said filler strip made of pliable annealed wire, preferably copper, arranged and adapted to be folded upon themselves and to retain the welt body in its final folded position without the use of other fastening means.

It has for an object also the production and introduction into a welt of a filler strip such as above indicated, which is of uniformly flat form and capable of imparting lo, the structure the folding features aforesaid without in the leastdetracting from the smooth and unbroken surface appearance of the welt.

With the foregoing and other objects in view, which will be apparent to persons skilled in the art to /which it relates, the invention will be hereinafter described and particularly pointed out in the appended claims.

In the accompanying drawings which form part of this application for Letters' Patent and whereon' corresponding numerals indicate like parts in the several views: Figure 1 is a perspective view, partly in section, of my improved welt;

Fig. 2 is a relativelyenlarged, transverse sectional view of the welt with its wire reinforcing filler strip incorporated therein and its tack-concealing body portion partially folded as it approaches operative position;

Fig. 3'is also a transverse sectional view corresponding with Figure 2, but showing the welt folded in the final operative position: and

Fig. 4 is a fragmentary perspective view showing the filler strip employed in this form of welt, including interwoven, pliable, metallic weft strands shown in dotted lines. Reference being had to the drawings and numerals thereon, 1 indicates a flexible core of any suitable material, such for example as paper, cord, rubber or other elastic material, and of any desired cross sectional form, that shown by the present illustrations bemg halfround, and 2 indicates a lon 'tudinal beading core also of'any suitable exible material, but preferably of tightly twisted paper cord for economy of manufacture. These two arallel members numbered 1 and 2 are comp etely enclosed or enveloped in a wrapper of suitable material, preferably a unitary strlp of leather, imitation leather, or fabric of any kind, eitherwith or without a nap of mohair or lush, according to requirements of the individual vjob to be trimmed.

This one-piece wrapper or envelope start- 1ng at 3, completely surrounds the core 1 to form a welt body 4, as shown by the drawmgs. It then continues inwardly upon a base line as at 5, to'the beading core 2 which it surrounds and encloses to constitute a head 6, and again crossing the structure as at 7 in arallelism, but not in contact with the mem er 5, terminates at 8, thus constituting a two-ply welt base as shown by Figures 1, 2 and'3.

Interposed between the two-ply base members 5 and 7 is a filler strip 9 of woven material, characterized by transversely arranged and interwoven pliable strands of annealed wire 10 in a gauge corresponding with that of the remaining fabric strands which collectively make up the flat filler strip 9 as a whole. The transverse wire strands 10 aforesaid, are simply woven into the filler strip as weft fabric strands instead of the usual fabric .threads, and while the may be of any bendable, pliable materia copper wire has been found in practice to be most satisfactory. The filler strip 9 having been introduced in operative position, between the two-ply base members 5 and 7, continues on, normally in flat form, crossing the under surface of core 1, as indicated in dotted lines b Figure 2, and is secured in this relation 0 parts by a ling of stitches 11 as shown by Figures 1, 2 an 3.

When constructed substantially as aforesaid, the completed welt, with its wire reinforced but bendable filler strip 9, is placed upon the market in flat form, that is to sa with the filler stri 9 embedded, and exten ing from side to side of the structure. The

welt is then applied and secured in flat form to the body of a vehicle by the usual fastening tacks, such as 12, driven directly through the two-ply base and its within-contained filler strip 9, as indicated by'Figures 2 and 3.

This accomplished, the welt body or core 1 is folded by hand of the trimmer, first into the position indicated by Figure 2, and then into its final finished position as shown by Figure 3, in which latter position it is-neatly and securely retained solely by agencyof the transversely arranged weft wires 10, which have been doubled upon themselves in the process of folding.

Having thus described my present invention in one form of embodiment, what I now claim and desire to secure by Letters Patout is:

1. A finishing welt of the blind-nail type, including a base portion, a tack-concealing body portion, and an interposed filler-strip having incorporated therein a series of transversely positioned pliable, metallic strands arranged and adapted to be folded upon themselves aud to retain the said body portion in its final operative position.

2. A finishing welt of the blind-nail type, including a two-ply base portion, a tack-concealing body portionliinged to said base portion, and a filler-strip embedded in the base portion aforesaid continuing beneath the body portion and having incorporated therein a series of pliable, metallic strands arranged and adapted to be folded upon themselves and to retain the said body portion in its final operative position.

3. A blind nail finishing welt having a wirecloth filler-strip associated therewith.

In testimony whereof I afiix my signature.

ROBERT C. SCHEMMEL. 

